235 static __noinline int parse_icmpv6(struct bpf_dynptr *skb_ptr, __u64 off,  in parse_icmpv6()  argument
242 	icmp_hdr = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));  in parse_icmpv6()
249 	ip6h = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));  in parse_icmpv6()
259 static __noinline int parse_icmp(struct bpf_dynptr *skb_ptr, __u64 off,  in parse_icmp()  argument
267 	icmp_hdr = bpf_dynptr_slice(skb_ptr, off, buffer_icmp, sizeof(buffer_icmp));  in parse_icmp()
274 	iph = bpf_dynptr_slice(skb_ptr, off, buffer_ip, sizeof(buffer_ip));  in parse_icmp()
284 static __noinline bool parse_udp(struct bpf_dynptr *skb_ptr, __u64 off,  in parse_udp()  argument
290 	udp = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));  in parse_udp()
304 static __noinline bool parse_tcp(struct bpf_dynptr *skb_ptr, __u64 off,  in parse_tcp()  argument
310 	tcp = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));  in parse_tcp()
327 static __noinline int process_packet(struct bpf_dynptr *skb_ptr,  in process_packet()  argument
354 		ip6h = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));  in process_packet()
366 			action = parse_icmpv6(skb_ptr, off, &pckt);  in process_packet()
377 		iph = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));  in process_packet()
389 			action = parse_icmp(skb_ptr, off, &pckt);  in process_packet()
401 		if (!parse_tcp(skb_ptr, off, &pckt))  in process_packet()
404 		if (!parse_udp(skb_ptr, off, &pckt))  in process_packet()